EP0419849A1 - Méthodes et appareil pour fondre ensemble de rotor et des fils métalliques de stator - Google Patents

Méthodes et appareil pour fondre ensemble de rotor et des fils métalliques de stator Download PDF

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Publication number
EP0419849A1
EP0419849A1 EP90116084A EP90116084A EP0419849A1 EP 0419849 A1 EP0419849 A1 EP 0419849A1 EP 90116084 A EP90116084 A EP 90116084A EP 90116084 A EP90116084 A EP 90116084A EP 0419849 A1 EP0419849 A1 EP 0419849A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
fusing member
force
fusing
predetermined
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90116084A
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German (de)
English (en)
Other versions
EP0419849B1 (fr
Inventor
Alessandro Rossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axis SpA
Original Assignee
Axis SpA
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27021706&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0419849(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Axis SpA filed Critical Axis SpA
Priority to EP93117137A priority Critical patent/EP0584841B1/fr
Publication of EP0419849A1 publication Critical patent/EP0419849A1/fr
Application granted granted Critical
Publication of EP0419849B1 publication Critical patent/EP0419849B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0056—Manufacturing winding connections
    • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B23K11/255—Monitoring devices using digital means the measured parameter being a force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/32—Connections of conductor to commutator segment

Definitions

  • fusing machines are widely used, a system for precisely controlling the fusing operation is not yet available.
  • Prior attempts to control the fusing operation have involved timing the period during which electric current is applied to a workpiece.
  • simple timing mechanisms do not provide any feedback to the fusing machine for quality control.
  • Other fusing machines monitor the temperature of the joint being fused with fiber optics. Temperature monitors do not indicate either electrode pressure or electrode displacement, and therefore cannot determine whether the electrode is properly deforming and fusing the armature wire and commutator.
  • U.S. Patent No. 4,371,772 describes a fusing machine having a spring assembly system.
  • a shaft moves downward to cause an electrode to contact a commutator hook.
  • the downward movement of the shaft causes the hook to bend and compresses a spring in the fusing machine.
  • the shaft reaches a stop, and electric current is applied. Additional force is applied by the electrode to further deform the hook and the wire to create the cohesion joint.
  • the magnitude of the additional force will depend on the previous spring compression, the remaining spring release, and the spring's physical properties.
  • the mechanical resistance of a fusion or "cohesion" joint depends on the final pressure applied. Variations in the electrode position (hook deformation) alter the heating rates and the maximum temperatures of the parts. The heating rates and maximum temperatures influence wire insulation removal, electrode wear, and the final quality of the cohesion joint.
  • a fusing machine having a threaded sleeve for converting the rotary motion of a screw mechanism to a precise translation of the electrode in the electrode axis.
  • the threaded sleeve and screw mechanism permits precise placement of the electrode in contact with the commutator hook or slot.
  • the electrode can be consistently displaced for each fusing operation.
  • the microprocessor stores a distinct, predetermined electrode displacement function with displacement as a function of time, X(t), or displacement as a function of force, X(p), for each hook or slot variation that the apparatus can process. Electrode position may be continuously measured and adjusted according to the displacement function.
  • the apparatus applies current to the electrode when the electrode is in a predetermined displacement range, and terminates fusing when the electrode is in a second predetermined displacement range. This process is particularly well suited for fusing small diameter wires.
  • Electrode 18 deforms hook 16 (see FIG. 4) until a predetermined amount of the front surface 22 of the hook contacts commutator bar 12, and continues to apply current to the hook. The pressure and current are applied until the cohesion joint forms between the hook's contact surface 22 and the bar. Hook 16 and wire 10 deform further until wire 10 has a predetermined diameter (designated by reference numeral 24).
  • the armature 26 is firmly mounted and positioned on a stationary work plane 28.
  • a conventional angular positioning unit (not shown) typically aligns the commutator hook to be processed with the electrode axis 30.
  • a conventional rejecting unit 31 is provided for removing a defective armature from work plane 28.
  • a cylindrical member 40 is seated on the bottom of hollow member 36.
  • a force transducer such as a load cell 42, is seated in cylindrical member 40.
  • One end of a pin 44 is fixed to hollow member 36, and the other end engages a recess 46 in cylindrical member 40. Pin 44 prevents cylindrical member 40 (and load cell 42) from rotating the respect to hollow member 36.
  • Supporting block 58 surrounds hollow member 48, but is not in contact with it.
  • Supporting block 58 is rigidly fixed to a slide 64, which slides on stationary frame guides 66.
  • Drive group 94 includes a low inertia dc motor, reduction gear, a tachometer, and an encoder.
  • Ball screw shoulder 96 rests against bearing 98, which seats in connection member 90.
  • a threaded sleeve 100 connects ball screw 84 to the output drive shaft 102 of the dc motor, and ensures that ball screw 84 is axially positioned against bearing 98.
  • the microprocessor and control circuitry of the present invention store distinct displacement functions X(t) and X(p) and force functions P(x) and P(t), predetermined for each type of hook to be fused.
  • Microprocessor 120 changes the field conditions of motor 114 to control the motor's torque. Signals received from load cell 42 (indicating electrode pressure) enable the microprocessor to modify the motor torque to satisfy force functions P(x) and P(t). Encoder signals provide microprocessor 120 with displacement information, enabling the microprocessor to precisely lower (or raise) electrode 18 according to the displacement functions X(t) and X(p).
  • the feedback loop control transmits the effects of changes made by microprocessor 120 on motor 114 back to the microprocessor, as feedback from load cell 42 and encoder 118. The feedback loop control constantly modifies the forces acting on electrode 18 to ensure strict adherence to the proper displacement or force function.
  • the measurement feedback loop provides a means for precisely controlling the displacement of electrode 18 throughout the entire fusing cycle.
  • the measured feedback loop may have two variations: electrode 18 may be displaced as a function of time (FIG. 7), or as a function of electrode force (FIG. 8).
  • step A If the electrode displacement is correct, the fusing cycle is interrupted, the armature is indexed for operation on the next hook, and the cycle begins again (step A). If the electrode displacement is not within the predetermined range, the process continues to an additional step (step F). If the electrode displacement exceeds the maximum displacement, the cycle begins again at step C. If the electrode displacement is less than the maximum allowable displacement, microprocessor 120 interrupts the cycle and rejects armature 26.
  • the methods and apparatus of the present invention may be used to fuse a stator lead wire 130 to a hook member of an electric motor's stator 132.
  • Stator hooks are fused in substantially the same manner as commutator hooks.
  • Stator hooks may be fused using the same force and displacement feedback loops that are used to fuse commutator hooks 16.
  • Fig. 14 shows stator 132, with longitudinal axis 134, wrapped with coils 136 and 138 around poles 140 and 142, respectively. Openings 144 are provided adjacent the lamination stack 146 for receiving and mounting a terminal board 148 against an end face of stack 146. Each of projecting members 150 frictionally engages a terminal 152 for receiving stator lead wire 130 and for providing external lead connections to the stator.
  • Each of electrodes 18 and 106 may be moved along axis 156 by independently-controlled drive mechanisms, which typically are equipped with a force transducer and a displacement sensor.
  • drive mechanisms typically are equipped with a force transducer and a displacement sensor.
  • stator hook 154 can be fused according to a predetermined force or displacement function, using a feedback force or displacement control loop (e.g., as shown in FIGS. 7-10).
  • electric current may be selectively applied to electrode 18 for predetermined values of electrode displacement or force.
  • FIG. 17 shows the final, fused connection of hook 154 and lead wire 130.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Fuses (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)
EP90116084A 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor et des fils métalliques de stator Expired - Lifetime EP0419849B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93117137A EP0584841B1 (fr) 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor ou des fils métalliques de stator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US41227989A 1989-09-25 1989-09-25
US412279 1989-09-25
US436633 1989-11-15
US07/436,633 US5063279A (en) 1989-09-25 1989-11-15 Methods and apparatus for fusing armature and stator wires

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP93117137A Division EP0584841B1 (fr) 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor ou des fils métalliques de stator
EP93117137.5 Division-Into 1990-08-22

Publications (2)

Publication Number Publication Date
EP0419849A1 true EP0419849A1 (fr) 1991-04-03
EP0419849B1 EP0419849B1 (fr) 1994-05-18

Family

ID=27021706

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90116084A Expired - Lifetime EP0419849B1 (fr) 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor et des fils métalliques de stator
EP93117137A Expired - Lifetime EP0584841B1 (fr) 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor ou des fils métalliques de stator

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93117137A Expired - Lifetime EP0584841B1 (fr) 1989-09-25 1990-08-22 Méthodes et appareil pour fondre ensemble de rotor ou des fils métalliques de stator

Country Status (6)

Country Link
US (1) US5063279A (fr)
EP (2) EP0419849B1 (fr)
JP (1) JPH03118747A (fr)
AT (2) ATE105755T1 (fr)
DE (3) DE69033184T2 (fr)
ES (1) ES2056322T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429766A2 (fr) * 1989-11-30 1991-06-05 AXIS S.p.A. Méthodes et appareils de marquage et d'identification d'agrafes de moteurs électriques
EP0575857A1 (fr) * 1992-06-25 1993-12-29 AXIS S.p.A. Méthode et appareil de fusion de conducteurs électriques
EP0627796A2 (fr) * 1993-06-04 1994-12-07 AXIS S.p.A. Méthodes et appareils pour détecter la séparation d'une électrode
WO2002036298A2 (fr) * 2000-11-02 2002-05-10 Leander Reischmann Tete de soudage
EP0649700B2 (fr) † 1993-10-01 2007-03-07 ATOP S.p.A. Méthode et appareillage de sertissage, pour appareillages dynamoélectriques
WO2016012880A1 (fr) 2014-07-22 2016-01-28 Atop S.P.A. Procédé et appareil permettant de déterminer la résistance électrique d'une connexion de bobine de bobines d'armature
DE102015000439A1 (de) * 2015-01-14 2016-07-14 Audi Ag Verfahren zum Bewickeln eines Wicklungsträgers

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5552572A (en) * 1989-11-30 1996-09-03 Axis Usa, Inc. Methods and apparatus for identifying hooks of electric motors
US5241486A (en) * 1989-11-30 1993-08-31 Axis U.S.A., Inc. Methods and apparatus for marking and identifying hooks of electric motors
US5386092A (en) * 1991-11-04 1995-01-31 Unitek Equipment Inc. Fast response weld head
US5331130A (en) * 1992-09-22 1994-07-19 Odawara Automation, Inc. Method and apparatus for fusing terminal or commutator wire connections on an armature or stator
US5360958A (en) * 1993-05-17 1994-11-01 Delco Electronics Corporation Welding apparatus having coaxial welding electrodes
US5418347A (en) * 1993-05-19 1995-05-23 Odawara Automation Inc. Method and apparatus for fusing terminal or commutator wire connections using a trigger current
US5486672A (en) * 1993-12-13 1996-01-23 Axis Usa, Inc. Methods and apparatus for commutator fusing
US5525774A (en) * 1994-08-16 1996-06-11 Globe Products Inc. Method and apparatus for fusing lead wires of coils to terminals
FR2728820A1 (fr) * 1994-12-30 1996-07-05 Renault Dispositif de soudage par resistance asservi en effort
US5660742A (en) * 1995-03-31 1997-08-26 Joyal Products, Inc. Insulated wire termination, method, and machine
EP0747697A1 (fr) 1995-06-07 1996-12-11 AXIS SpA Procédé et dispositif de contrÔle acoustique des armatures
US5828028A (en) * 1996-06-24 1998-10-27 Cecil; Dimitrios G. Hot forging method and apparatus
US5831235A (en) * 1996-06-24 1998-11-03 Cecil; Dimitrios G. Apparatus and method of welding a tube and bracket assembly
DE69813993D1 (de) 1997-10-29 2003-06-05 Axis Spa Vorrichtung und Verfahren zur Herstellung von Armaturen
JP2000126869A (ja) * 1998-08-20 2000-05-09 Seiwa Seisakusho:Kk 抵抗溶接装置
US6474435B1 (en) 2000-09-07 2002-11-05 Trw Vehicle Safety Systems Inc. Means for electrical connection of components in a vehicle occupant protection system
US6545243B1 (en) * 2001-09-14 2003-04-08 Delco Remy America, Inc. Dynamic weld power termination for hot-staking armature commutators
US6903298B2 (en) * 2003-08-25 2005-06-07 General Motors Corporation Resistance welding control method
IT1394587B1 (it) * 2009-04-29 2012-07-05 Atop Spa Apparecchiatura e metodo per avvolgere e terminare nuclei per macchine dinamo elettriche
US9172289B2 (en) 2012-11-27 2015-10-27 Regal Beloit America, Inc. Wire guide for use in an electric machine
US9698645B2 (en) 2013-03-14 2017-07-04 Regal Beloit America, Inc. Electric machine and associated method
US20150214820A1 (en) * 2014-01-24 2015-07-30 Remy Technologies, Llc Hairpin joint
CN106911232B (zh) * 2017-04-01 2024-04-16 宁波韵升电驱动技术有限公司 电枢换向器的压制装置及压制方法
CN110860775B (zh) * 2019-12-10 2021-09-03 璋祐科技(深圳）有限公司 全自动单侧点焊机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538295A1 (de) * 1975-08-28 1977-03-10 Bosch Gmbh Robert Verfahren zum herstellen einer elektrisch leitenden und mechanisch festen verbindung von aluminiumleitern an kupferkommutatoren
DE3228039A1 (de) * 1981-07-31 1983-02-17 Mabuchi Motor Co.,Ltd., Tokyo Kommutatorvorrichtung fuer elektrische kleinmotoren
DE3711771A1 (de) * 1987-04-08 1988-10-27 Sts Systemtechnik Und Software Verfahren und einrichtung fuer die prozessreglung beim punktschweissen

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US3045103A (en) * 1960-10-10 1962-07-17 Warner Samuel Commutator fusing machine
US3449541A (en) * 1966-01-20 1969-06-10 Martin Marietta Corp Apparatus for producing resistance welds
US3514569A (en) * 1967-12-28 1970-05-26 Raytheon Co Resistance welder
US3727822A (en) * 1970-10-05 1973-04-17 Gen Electric Electromagnetic force system for integrated circuit fabrication
US3781981A (en) * 1972-02-28 1974-01-01 Nippon Denko Method for making armature-commutator assembly having armature winding of very small diameter
US4079225A (en) * 1976-08-04 1978-03-14 Warner Allan S Fiber optic/photon detector for brazing machine
US4249068A (en) * 1978-09-28 1981-02-03 Joyal Products, Inc. Method and apparatus for controlling heat energy of a bonding transformer
US4224496A (en) * 1978-10-12 1980-09-23 Joyal Products, Inc. Method and apparatus for controlling a brazing machine
DE3018384A1 (de) * 1980-05-14 1981-11-19 Rossell Electronique S.A., Lausanne Verfahren zum zubringen von mindestens einer elektrode, zubringevorrichtung und aufnehmer zur ausfuehrung dieses verfahrens sowie verwendung des verfahrens, der zubringevorrichtung und/oder des aufnehmers
US4504724A (en) * 1980-11-03 1985-03-12 Joyal Products, Inc. Fusing machine
US4510370A (en) * 1980-11-03 1985-04-09 Joyal Products, Inc. Fusing machine
US4371772A (en) * 1980-11-03 1983-02-01 Joyal Products, Inc. Plural shaft electrode support for fusing machine
US4451722A (en) * 1980-11-03 1984-05-29 Joyal Products, Inc. Fusing machine
US4419558A (en) * 1981-11-23 1983-12-06 Wagen Of America, Inc. Apparatus and method for monitoring and controlling resistance spot welding
US4562330A (en) * 1983-09-09 1985-12-31 Digimetrics, Inc. Spot weld quality monitoring system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538295A1 (de) * 1975-08-28 1977-03-10 Bosch Gmbh Robert Verfahren zum herstellen einer elektrisch leitenden und mechanisch festen verbindung von aluminiumleitern an kupferkommutatoren
DE3228039A1 (de) * 1981-07-31 1983-02-17 Mabuchi Motor Co.,Ltd., Tokyo Kommutatorvorrichtung fuer elektrische kleinmotoren
DE3711771A1 (de) * 1987-04-08 1988-10-27 Sts Systemtechnik Und Software Verfahren und einrichtung fuer die prozessreglung beim punktschweissen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429766A2 (fr) * 1989-11-30 1991-06-05 AXIS S.p.A. Méthodes et appareils de marquage et d'identification d'agrafes de moteurs électriques
EP0429766A3 (en) * 1989-11-30 1992-07-22 Axis S.P.A. Methods and apparatus for marking and identifying hooks of electric motors
EP0575857A1 (fr) * 1992-06-25 1993-12-29 AXIS S.p.A. Méthode et appareil de fusion de conducteurs électriques
EP0627796A2 (fr) * 1993-06-04 1994-12-07 AXIS S.p.A. Méthodes et appareils pour détecter la séparation d'une électrode
EP0627796A3 (fr) * 1993-06-04 1996-07-17 Axis Spa Méthodes et appareils pour détecter la séparation d'une électrode.
EP0649700B2 (fr) † 1993-10-01 2007-03-07 ATOP S.p.A. Méthode et appareillage de sertissage, pour appareillages dynamoélectriques
WO2002036298A2 (fr) * 2000-11-02 2002-05-10 Leander Reischmann Tete de soudage
WO2002036298A3 (fr) * 2000-11-02 2002-09-12 Leander Reischmann Tete de soudage
US6911615B2 (en) 2000-11-02 2005-06-28 Leander Reischmann Welding head
WO2016012880A1 (fr) 2014-07-22 2016-01-28 Atop S.P.A. Procédé et appareil permettant de déterminer la résistance électrique d'une connexion de bobine de bobines d'armature
DE102015000439A1 (de) * 2015-01-14 2016-07-14 Audi Ag Verfahren zum Bewickeln eines Wicklungsträgers

Also Published As

Publication number Publication date
ES2056322T3 (es) 1994-10-01
ATE181523T1 (de) 1999-07-15
DE419849T1 (de) 1993-11-04
EP0584841A3 (en) 1994-05-18
EP0584841B1 (fr) 1999-06-23
EP0584841A2 (fr) 1994-03-02
DE69033184T2 (de) 2000-03-09
DE69033184D1 (de) 1999-07-29
ATE105755T1 (de) 1994-06-15
DE69008980T2 (de) 1994-09-08
DE69008980D1 (de) 1994-06-23
JPH03118747A (ja) 1991-05-21
EP0419849B1 (fr) 1994-05-18
US5063279A (en) 1991-11-05

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